normal.c 3.6 KB

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  1. /*
  2. Search text engine.
  3. Plain search
  4. Copyright (C) 2009, 2011
  5. The Free Software Foundation, Inc.
  6. Written by:
  7. Slava Zanko <slavazanko@gmail.com>, 2009.
  8. This file is part of the Midnight Commander.
  9. The Midnight Commander is free software: you can redistribute it
  10. and/or modify it under the terms of the GNU General Public License as
  11. published by the Free Software Foundation, either version 3 of the License,
  12. or (at your option) any later version.
  13. The Midnight Commander is distributed in the hope that it will be useful,
  14. but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. GNU General Public License for more details.
  17. You should have received a copy of the GNU General Public License
  18. along with this program. If not, see <http://www.gnu.org/licenses/>.
  19. */
  20. #include <config.h>
  21. #include "lib/global.h"
  22. #include "lib/strutil.h"
  23. #include "lib/search.h"
  24. #include "internal.h"
  25. /*** global variables ****************************************************************************/
  26. /*** file scope macro definitions ****************************************************************/
  27. /*** file scope type declarations ****************************************************************/
  28. /*** file scope variables ************************************************************************/
  29. /*** file scope functions ************************************************************************/
  30. static GString *
  31. mc_search__normal_translate_to_regex (const GString * astr)
  32. {
  33. const char *str = astr->str;
  34. GString *buff;
  35. gsize loop;
  36. buff = g_string_sized_new (32);
  37. for (loop = 0; loop < astr->len; loop++)
  38. switch (str[loop])
  39. {
  40. case '*':
  41. case '?':
  42. case ',':
  43. case '{':
  44. case '}':
  45. case '[':
  46. case ']':
  47. case '\\':
  48. case '+':
  49. case '.':
  50. case '$':
  51. case '(':
  52. case ')':
  53. case '^':
  54. case '-':
  55. case '|':
  56. g_string_append_c (buff, '\\');
  57. /* fall through */
  58. default:
  59. g_string_append_c (buff, str[loop]);
  60. break;
  61. }
  62. return buff;
  63. }
  64. /*** public functions ****************************************************************************/
  65. void
  66. mc_search__cond_struct_new_init_normal (const char *charset, mc_search_t * lc_mc_search,
  67. mc_search_cond_t * mc_search_cond)
  68. {
  69. GString *tmp;
  70. tmp = mc_search__normal_translate_to_regex (mc_search_cond->str);
  71. g_string_free (mc_search_cond->str, TRUE);
  72. if (lc_mc_search->whole_words)
  73. {
  74. /* NOTE: \b as word boundary doesn't allow search
  75. * whole words with non-ASCII symbols */
  76. g_string_prepend (tmp, "(^|[^\\p{L}\\p{N}_])(");
  77. g_string_append (tmp, ")([^\\p{L}\\p{N}_]|$)");
  78. }
  79. mc_search_cond->str = tmp;
  80. mc_search__cond_struct_new_init_regex (charset, lc_mc_search, mc_search_cond);
  81. }
  82. /* --------------------------------------------------------------------------------------------- */
  83. gboolean
  84. mc_search__run_normal (mc_search_t * lc_mc_search, const void *user_data,
  85. gsize start_search, gsize end_search, gsize * found_len)
  86. {
  87. return mc_search__run_regex (lc_mc_search, user_data, start_search, end_search, found_len);
  88. }
  89. /* --------------------------------------------------------------------------------------------- */
  90. GString *
  91. mc_search_normal_prepare_replace_str (mc_search_t * lc_mc_search, GString * replace_str)
  92. {
  93. (void) lc_mc_search;
  94. return g_string_new_len (replace_str->str, replace_str->len);
  95. }